# A007232 (b-file synthesized from sequence entry)
1 2
2 15
3 74
4 409
5 1951
6 9765
7 48827
8 256347
9 1220699
10 6103515
11 30517572
12 160216158
13 762939452
14 3814697265
15 19073486293
16 101327896117
17 476837158134